note 96133 rejected from function.stats-stat-percentile by danbrown

From: Date: Wed, 10 Feb 2010 15:07:43 +0000
Subject: note 96133 rejected from function.stats-stat-percentile by danbrown
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Note Submitter: jgrant at chks dot co dot uk ---- Has anyone come across a 'feature' of the function where by an array passed in is automatically sorted, and you lose any keys defined within the array? This happens if the array is a copy or the array is passed in via another function. If $tmpArray contains the following information: Array ( [51] => 150 [52] => 178 [53] => 116 [54] => 109 [61] => 45 [62] => 29 [63] => 26 [64] => 42 [71] => 32 [72] => 100 [73] => 120 [74] => 122 [81] => 54 [82] => 64 [83] => 51 [84] => 42 [91] => 46 [92] => 67 ) And you run the code below: list($percent05, $percent95) = percentiles($tmpArray); print "<pre>"; print_r($tmpArray); print "</pre>"; function percentiles($newArray) { $percent05 = stats_stat_percentile($newArray, 0.05); $percent95 = stats_stat_percentile($newArray, 0.95); return(array($percent05, $percent95)); } The outputted array is now: Array ( [0] => 26 [1] => 29 [2] => 32 [3] => 42 [4] => 42 [5] => 45 [6] => 46 [7] => 51 [8] => 54 [9] => 64 [10] => 67 [11] => 100 [12] => 109 [13] => 116 [14] => 120 [15] => 122 [16] => 150 [17] => 178 )

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